iWorX® ALM2
10
505-013, Effective: November 12, 2010
© 2010 Taco Electronic Solutions, Inc.
Figure 4:
Class 2
Typical ALM2 Wired as Power Isolated
Connecting Input Devices
All inputs can be used for either analog thermistors or digital contact switches. The software configuration of the con-
troller determines whether a particular input is read as a temperature or digital input.
Temperature Inputs
To connect a temperature sensor to the unit, attach one wire from the thermistor to an input terminal, (T8, T10, T11,
T13, T14, T16, T17, or T19) and the other wire to an adjacent common (T9, T12, T15, or T18). The thermistor used
must be 10K Precon Type III.
